2021-09-23 08:21:13

by Archie Pusaka

[permalink] [raw]
Subject: [Bluez PATCH] device: Check both bearers's paired status upon removal of connection

From: Archie Pusaka <[email protected]>

Because Link Key for BREDR can be transformed into LTK for LE (and
vice versa), there is a possibility of getting 'paired' on either of
BREDR/LE without actually connected using the aforementioned bearer.

When removing the connection, we should check both bearers's paired
and bonded status rather than just the one getting disconnected.

Reviewed-by: Miao-chen Chou <[email protected]>
---

src/device.c | 40 ++++++++++++++++++++++++++++------------
1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/src/device.c b/src/device.c
index b29aa195d1..6a66fc9a23 100644
--- a/src/device.c
+++ b/src/device.c
@@ -3010,6 +3010,7 @@ void device_remove_connection(struct btd_device *device, uint8_t bdaddr_type)
struct bearer_state *state = get_state(device, bdaddr_type);
DBusMessage *reply;
bool remove_device = false;
+ bool paired_status_updated = false;

if (!state->connected)
return;
@@ -3048,18 +3049,33 @@ void device_remove_connection(struct btd_device *device, uint8_t bdaddr_type)
dbus_message_unref(msg);
}

- if (state->paired && !state->bonded) {
- btd_adapter_remove_bonding(device->adapter, &device->bdaddr,
- bdaddr_type);
-
- state->paired = false;
-
- /* report change only if both bearers are unpaired */
- if (!device->bredr_state.paired && !device->le_state.paired)
- g_dbus_emit_property_changed(dbus_conn, device->path,
- DEVICE_INTERFACE,
- "Paired");
- }
+ /* Check paired status of both bearers since it's possible to be
+ * paired but not connected via link key to LTK conversion.
+ */
+ if (!device->bredr_state.connected && device->bredr_state.paired &&
+ !device->bredr_state.bonded) {
+ btd_adapter_remove_bonding(device->adapter,
+ &device->bdaddr,
+ BDADDR_BREDR);
+ device->bredr_state.paired = false;
+ paired_status_updated = true;
+ }
+
+ if (!device->le_state.connected && device->le_state.paired &&
+ !device->le_state.bonded) {
+ btd_adapter_remove_bonding(device->adapter,
+ &device->bdaddr,
+ device->bdaddr_type);
+ device->le_state.paired = false;
+ paired_status_updated = true;
+ }
+
+ /* report change only if both bearers are unpaired */
+ if (!device->bredr_state.paired && !device->le_state.paired &&
+ paired_status_updated)
+ g_dbus_emit_property_changed(dbus_conn, device->path,
+ DEVICE_INTERFACE,
+ "Paired");

if (device->bredr_state.connected || device->le_state.connected)
return;
--
2.33.0.464.g1972c5931b-goog


2021-09-23 08:43:35

by bluez.test.bot

[permalink] [raw]
Subject: RE: [Bluez] device: Check both bearers's paired status upon removal of connection

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=551527

---Test result---

Test Summary:
CheckPatch PASS 1.54 seconds
GitLint PASS 0.95 seconds
Prep - Setup ELL PASS 52.48 seconds
Build - Prep PASS 0.47 seconds
Build - Configure PASS 9.60 seconds
Build - Make PASS 221.38 seconds
Make Check PASS 10.32 seconds
Make Distcheck PASS 263.71 seconds
Build w/ext ELL - Configure PASS 9.62 seconds
Build w/ext ELL - Make PASS 208.63 seconds



---
Regards,
Linux Bluetooth

2021-09-24 00:19:33

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: Re: [Bluez] device: Check both bearers's paired status upon removal of connection

Hi Archie,


On Thu, Sep 23, 2021 at 1:43 AM <[email protected]> wrote:
>
> This is automated email and please do not reply to this email!
>
> Dear submitter,
>
> Thank you for submitting the patches to the linux bluetooth mailing list.
> This is a CI test results with your patch series:
> PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=551527
>
> ---Test result---
>
> Test Summary:
> CheckPatch PASS 1.54 seconds
> GitLint PASS 0.95 seconds
> Prep - Setup ELL PASS 52.48 seconds
> Build - Prep PASS 0.47 seconds
> Build - Configure PASS 9.60 seconds
> Build - Make PASS 221.38 seconds
> Make Check PASS 10.32 seconds
> Make Distcheck PASS 263.71 seconds
> Build w/ext ELL - Configure PASS 9.62 seconds
> Build w/ext ELL - Make PASS 208.63 seconds
>
>
>
> ---
> Regards,
> Linux Bluetooth

Applied, thanks.

--
Luiz Augusto von Dentz